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FKIE_CVE-2014-6052

Vulnerability from fkie_nvd - Published: 2014-12-15 18:59 - Updated: 2026-06-17 00:12
Severity
Summary
The HandleRFBServerMessage function in libvncclient/rfbproto.c in LibVNCServer 0.9.9 and earlier does not check certain malloc return values, which allows remote VNC servers to cause a denial of service (application crash) or possibly execute arbitrary code by specifying a large screen size in a (1) FramebufferUpdate, (2) ResizeFrameBuffer, or (3) PalmVNCReSizeFrameBuffer message.
References
cve@mitre.orghttp://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
cve@mitre.orghttp://seclists.org/oss-sec/2014/q3/639Mailing List, Third Party Advisory
cve@mitre.orghttp://secunia.com/advisories/61506Permissions Required, Third Party Advisory
cve@mitre.orghttp://secunia.com/advisories/61682Permissions Required, Third Party Advisory
cve@mitre.orghttp://ubuntu.com/usn/usn-2365-1Third Party Advisory
cve@mitre.orghttp://www.debian.org/security/2014/dsa-3081Third Party Advisory
cve@mitre.orghttp://www.ocert.org/advisories/ocert-2014-007.htmlThird Party Advisory, US Government Resource
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2014/09/25/11Mailing List, Third Party Advisory
cve@mitre.orghttp://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/70091
cve@mitre.orghttps://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812Exploit, Issue Tracking, Patch
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
cve@mitre.orghttps://security.gentoo.org/glsa/201507-07
cve@mitre.orghttps://usn.ubuntu.com/4587-1/
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/oss-sec/2014/q3/639Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/61506Permissions Required, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/61682Permissions Required, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://ubuntu.com/usn/usn-2365-1Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2014/dsa-3081Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.ocert.org/advisories/ocert-2014-007.htmlThird Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2014/09/25/11Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/70091
af854a3a-2127-422b-91ae-364da2661108https://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812Exploit, Issue Tracking, Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201507-07
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4587-1/
Impacted products
Vendor Product Version
libvncserver libvncserver *
oracle solaris 11.3
debian debian_linux 7.0
canonical ubuntu_linux 12.04
canonical ubuntu_linux 14.04
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:libvncserver:libvncserver:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E7FA4C02-01AA-417C-BB93-14A18D2D3768",
              "versionEndIncluding": "0.9.9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
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              "matchCriteriaId": "79A602C5-61FE-47BA-9786-F045B6C6DBA8",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*",
              "matchCriteriaId": "B6B7CAD7-9D4E-4FDB-88E3-1E583210A01F",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084",
              "vulnerable": true
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          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The HandleRFBServerMessage function in libvncclient/rfbproto.c in LibVNCServer 0.9.9 and earlier does not check certain malloc return values, which allows remote VNC servers to cause a denial of service (application crash) or possibly execute arbitrary code by specifying a large screen size in a (1) FramebufferUpdate, (2) ResizeFrameBuffer, or (3) PalmVNCReSizeFrameBuffer message."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n HandleRFBServerMessage en libvncclient/rfbproto.c en LibVNCServer 0.9.9 y anteriores no comprueba ciertos valores de retorno malloc, lo que permite a servidores remotos VNC causar una denegaci\u00f3n de servicio (ca\u00edda de la aplicaci\u00f3n) o posiblemente ejecutar c\u00f3digo arbitrario mediante la especificaci\u00f3n de un tama\u00f1o de pantalla grande en un mensaje (1) FramebufferUpdate, (2) ResizeFrameBuffer, o (3) PalmVNCReSizeFrameBuffer."
    }
  ],
  "id": "CVE-2014-6052",
  "lastModified": "2026-06-17T00:12:31.053",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2014-12-15T18:59:04.033",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html"
    },
    {
      "source": "cve@mitre.org",
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    },
    {
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    },
    {
      "source": "cve@mitre.org",
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      "url": "http://www.openwall.com/lists/oss-security/2014/09/25/11"
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      "source": "cve@mitre.org",
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      "url": "http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/bid/70091"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812"
    },
    {
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      "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"
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    {
      "source": "cve@mitre.org",
      "url": "https://security.gentoo.org/glsa/201507-07"
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    {
      "source": "cve@mitre.org",
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    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    {
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    {
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.